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Point-based approach is a well-known localization approach in Wireless Sensor Networks (WSNs). However, by applying the point-based approach, the communication disk (communication range) of each sensor has to be passed through by the mobile anchor twice at least. To address this problem, this paper presents a Rapid Localization (RL) scheme which aims at reducing the time duration required for each...
Coverage is an important issue that has been widely discussed in wireless sensor networks (WSNs). However, it is still a big challenge to achieve both the purposes of full coverage and energy balancing. This paper considers the area coverage problem for a WSN where each sensor has variable sensing radius. A Weighted Voronoi Diagram (WVD) is proposed as a tool for determining the responsible sensing...
Recently, many location-aware routing protocols have been proposed to overcome the obstacles and construct the shortest route which minimizes the end-to-end delay and saves overheads for packet forwarding. However, most of them require accurate location information which is difficult to obtain. Another problem of existing location aware routing is that the sensor nodes located on the best route will...
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